MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The embedded JavaScript and numerous external URIs, many hosted on compromised or disposable domains, indicate an attempt to redirect users to malicious content. The PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristic specifically points to links hosted on compromised WordPress upload storage, suggesting a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://tebra.si/userfiles/file/82654062147.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e8072784d---gisemukafipaken.pdf
- http://prabashproperties.com/ckfinder/userfiles/files/41197019118.pdf
- http://nadiadsa.org/userfiles/file/buluzewidoju.pdf
- http://limobebe.com/userfiles/files/xezezasufanur.pdf
- http://studioarclab.eu/userfiles/files/pupezowopur.pdf
- http://pharmabiosolutions.com/filespath/files/20210904141057.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b764d36448---76691727547.pdf
- http://villacappuccina.com/userfiles/files/mukemapupa.pdf
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/81281169871.pdf
- http://nemeckystrakac.sk/editor_uploads/files/kevavopefidikezo.pdf
- http://yogaschoolofkerala.com/photos/editor/files/nukuvaz.pdf
- https://amrapalispot.com/userfiles/file/85276722405.pdf
- http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/ratirobusutavizizunatemar.pdf
- http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/52765581171.pdf
- https://chmelo.hu/sites/default/files/file/92793923087.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16142077e330a7---31595210291.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132d472c3672---54259631707.pdf
- https://cityface.cz/res/file/simuzidibuzilemixebo.pdf
- http://ohadalegistrocbarter.com/ckeditor/uploads/files/23854950420.pdf
- http://daehwa.info/uploaded/file/80455410861.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161403c84997f9---72662000165.pdf
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614269217799a---55143750917.pdf
- http://wsospice.org/uploads/userfiles/file/file/rebufubuxiju.pdf
- https://rdsdealers.com/ckfinder/userfiles/files/wulola.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=s21+ultra+vs+s20+ultra+screen+size
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d916.bin31cea43c89cd8f544f735e8103e6ec3e12acc2e8ce73ba5314600c077eead4e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD916 | 18252 bytes |
font_01_sfnt_off00010944.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10944 | 16792 bytes |
font_02_sfnt_off0001215b.bin40a84cc8689bfff26837ac33036fc69f5e38d66f2c47ae676c9df6341f613e18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1215B | 10700 bytes |
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